From 0e8416907674da88819b70d6db208fa490d0f946 Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Thu, 23 Dec 2010 22:41:30 +0100
Subject: [PATCH] formatchar: avoid annotation of empty cells (regression)

---
 Shiar_Sheet/FormatChar.pm | 56 ++++++++++++++++++++-------------------
 1 file changed, 29 insertions(+), 27 deletions(-)

diff --git a/Shiar_Sheet/FormatChar.pm b/Shiar_Sheet/FormatChar.pm
index 62f6791..78f2a19 100644
--- a/Shiar_Sheet/FormatChar.pm
+++ b/Shiar_Sheet/FormatChar.pm
@@ -108,38 +108,40 @@ sub cell {
 	}
 
 	my $anno = '';
-	for (@{ $self->{anno} }) {
-		if (/html$/) {
-			require HTML::Entities;
-			if (my $entity = $HTML::Entities::char2entity{$cell}) {
-				$entity = substr($entity, 1, -1) unless /^&/;
-				$anno = sprintf(' <small class="digraph">%s</small>', EscapeHTML($entity));
-				last;
+	if ($cell ne '') {
+		for (@{ $self->{anno} }) {
+			if (/html$/) {
+				require HTML::Entities;
+				if (my $entity = $HTML::Entities::char2entity{$cell}) {
+					$entity = substr($entity, 1, -1) unless /^&/;
+					$anno = sprintf(' <small class="digraph">%s</small>', EscapeHTML($entity));
+					last;
+				}
 			}
-		}
-		elsif ($_ eq 'xml') {
-			$anno = sprintf(' <small class="digraph">%s</small>',
-				sprintf '#%d', ord($cell)
-			);
-			last;
-		}
-		elsif ($_ eq '&xml') {
-			$anno = sprintf(' <small class="digraph">%s</small>',
-				sprintf '&amp;#%d;', ord($cell)
-			);
-			last;
-		}
-		elsif ($_ eq 'di') {
-			if (defined $mnem and length $mnem) {
-				$anno = sprintf(' <small class="digraph">%s</small>', EscapeHTML($mnem));
+			elsif ($_ eq 'xml') {
+				$anno = sprintf(' <small class="digraph">%s</small>',
+					sprintf '#%d', ord($cell)
+				);
 				last;
 			}
-		}
-		else {
-			if ($_ eq 'hex' or $cell =~ /^[^a-zA-Z]$/) {
-				$anno = sprintf(' <small class="%s">%04X</small>', 'value', ord $cell);
+			elsif ($_ eq '&xml') {
+				$anno = sprintf(' <small class="digraph">%s</small>',
+					sprintf '&amp;#%d;', ord($cell)
+				);
 				last;
 			}
+			elsif ($_ eq 'di') {
+				if (defined $mnem and length $mnem) {
+					$anno = sprintf(' <small class="digraph">%s</small>', EscapeHTML($mnem));
+					last;
+				}
+			}
+			else {
+				if ($_ eq 'hex' or $cell =~ /^[^a-zA-Z]$/) {
+					$anno = sprintf(' <small class="%s">%04X</small>', 'value', ord $cell);
+					last;
+				}
+			}
 		}
 	}
 
-- 
2.30.0